#! /bin/sh -e

setup_env()
{
	unset DEBIAN_HAS_FRONTEND
	export DEBIAN_FRONTEND=noninteractive
	unset DEBCONF_FRONTEND
	unset DEBCONF_REDIR
	export DEBCONF_ADMIN_EMAIL=
	export APT_LISTCHANGES_FRONTEND=none
}

apt_get_args="--no-upgrade -o Acquire::gpgv::Options::=--ignore-time-conflict -y"

if [ -n "$LINGMO-INSTALLER_OEM_USER_CONFIG" ]; then
	# The installer uses apt-install to queue packages for installation in the
	# target system. In oem user config mode, we can just install them directly.
	setup_env
	apt-get $apt_get_args install "$@" </dev/null
	exit 0
fi

mkdir -p /var/lib/lingmo-installer
for package; do
	echo "$package" >> /var/lib/lingmo-installer/apt-installed
done
# TODO cjwatson 2006-09-04: queueing not implemented
if [ -f /var/lib/lingmo-installer/apt-install-direct ]; then
	installed="$(mktemp -t lingmo-installer.XXXXXX)"
	trap "rm -f '$installed'" EXIT HUP INT QUIT TERM
	chroot /target dpkg-query -W --showformat='${Package} ${Status}\n' | \
		grep ' installed$' | cut -d' ' -f1 | sort > "$installed"
	toinstall="$(echo "$@" | xargs -n1 | sort | join -v1 - "$installed")"
	if [ "$toinstall" ]; then
		# TODO: use chroot-setup
		setup_env
		chroot /target apt-get $apt_get_args install $toinstall </dev/null
	fi
fi
